JP2017065519A - Mounting frame body for vehicle battery - Google Patents

Abstract

An object of the present invention is to provide a vehicle battery mounting frame body that has a high protection effect against the external force of a battery mounted on a vehicle and is excellent in waterproofness. A frame frame in which at least two first frames 12 arranged in a vertical direction and a plurality of second frames 13 arranged in a horizontal direction between the at least two first frames are connected to each other; A bottom lid disposed on the bottom of the frame frame, of the first and second frames, a flange is formed on one side of the frame, and an end of the other frame is placed on the flange; A butt connection is provided, and a sealing member S1 is disposed at least along the lower portion of the butt portion. [Selection] Figure 1

Description

The present invention relates to a frame body for mounting a driving battery on a vehicle.
In particular, the battery has a high protective effect and relates to a water-stopping structure against water.

An electric vehicle, a hybrid vehicle, or the like uses a motor as a drive source, and a battery for supplying electric power to the motor is mounted on the vehicle.
In order to meet the demands for increased battery load, longer external battery charging accessibility, battery replacement, etc., it is also considered to place the battery outside the passenger compartment, for example, below the vehicle floor. ing.
In such a case, the battery is a high voltage system, and it is necessary to prevent rainwater and the like from entering from outside and to ensure waterproofness against troubles such as the vicinity of the vehicle floor being immersed in water.

Patent Document 1 discloses a technique for mounting a battery on a tray including a bottom wall and a peripheral wall that stands up from the periphery of the bottom wall.
However, the battery mounting structure disclosed in the publication is a structure in which the outside of the tray is supported by a plurality of outer frames and inner frames, and the structure is complicated, requires a large number of parts, and requires a large mounting space. There are many wastes.
Patent Document 2 discloses a battery mounting structure in which both end portions of the tray are inserted and fixed in the recesses and the battery mounting portion is formed in a closed cross section. However, there is a high possibility that water may enter from the fixing portion.
In addition, when fixing the battery, conventionally, as shown in FIG. 7, the hollow 115a of the bottom 115 is provided with the working hole 115e of the bolt 120 and the insertion hole 115c, but water enters from the work hole and the bolt insertion hole. It was necessary to seal the part.

Japanese Patent No. 5652377 JP-A-7-323736

  An object of the present invention is to provide a vehicle battery mounting frame body that has a high protection effect against the external force of the battery mounted on the vehicle and is excellent in waterproofness.

  A vehicle battery mounting frame body according to the present invention includes at least two first frames arranged in a vertical direction and a plurality of second frames arranged in a horizontal direction between the at least two first frames. A frame frame connected to the frame frame, and a bottom lid disposed on the bottom of the frame frame, wherein a flange is formed on a side of one of the first and second frames, and an end of the other frame is It is mounted and butt-coupled on the flange, and a sealing member is disposed at the butt portion along at least the lower part.

Here, there is no limitation on the mounting direction and mounting position of the mounting frame body relative to the vehicle, and for the sake of convenience in this specification, one of the frame members is expressed as a vertical direction, and the direction intersecting with the horizontal direction is expressed as a horizontal direction.
Since the end of the other frame is placed and abutted against one flange in this way, the seal member is compressed between the end of the other frame and the side of the one frame, and water enters from the outside. To prevent.
In this case, since the frames are in direct contact with each other at the part where the seal member is not provided, for example, the upper part of the butt, the over compression damage of the seal member is prevented.
Therefore, the amount of compression of the seal member can be adjusted by providing the lower-side butting portion to have a seal member arrangement accommodating portion.

In the present invention, the frame frame has a mounting flange integrally extending from the frame on the inner periphery, and the outer peripheral edge of the bottom cover is mounted on the upper side of the mounting flange. A seal member may be disposed between the mounting flange and the outer peripheral edge of the bottom lid.
Thereby, the space between the bottom lid and the frame frame is waterproofed.
Also in this case, the mounting flange can have the accommodating step portion of the seal member, and the compression amount of the seal member can be adjusted.
In addition, when fixing the battery to the upper surface of the bottom cover, if the bottom cover has a fixing flange for fixing the battery on the inner side of the mounting flange described above, sealing of the battery fixing part is unnecessary. Become.

In the frame body according to the present invention, a plurality of frames are connected in a frame shape, and a bottom cover is provided at the bottom portion. Therefore, a battery is fixed inside the frame body to absorb the deformation force from the outside by the entire frame body, thus protecting the frame body. The connecting part between the vertical frame and the horizontal frame is highly effective, and the abutting part where the sealing member such as the upper part of the abutting part is not disposed is used so that the sealing member arranged along the lower part is not overcompressed. Since they are in direct contact with each other, the seal member can be prevented from being damaged by over-compression, and the sealing performance is high.
In this case, since the frames are directly connected to each other except the portion having the seal member, the protection effect from external force is stable and high.
In addition, when the bottom lid that fixes the battery to the top surface is placed and connected to the placement flange on the inner periphery of the frame frame, a seal member is disposed between the outer periphery of the bottom lid and the placement flange. Waterproofness of the outer periphery of the lid is also high.
When forming a bolt insertion hole for fixing the battery to the bottom lid, provide a fixing flange on the inner side of the mounting flange on the frame frame side so that the battery can be bolted with this fixing flange There is no need to seal around the bolt insertion hole.

The external appearance perspective view of the frame body which concerns on this invention is shown. The example of a connection structure of a 1st frame and a 2nd frame is shown, (a) shows before connection, (b) shows after connection. An example of the connection structure of the frame and the bottom cover is shown, (a) before connection and (b) after connection. The example which provided the fixing flange for bolting to a bottom cover is shown, (a) shows before connection, (b) shows after connection. The other Example of a frame cross section is shown. The 2nd Example of a frame body is shown. An example of a conventional battery fixing structure is shown.

A structural example of a frame body according to the present invention will be described below with reference to the drawings.
FIG. 1 shows an example in which a pair of second frames 13 and 14 are connected as horizontal frames between a pair of first frames 11 and 12 arranged opposite to each other in the vertical direction.
For example, the mounting flanges 11b and 12b are provided on the first frames 11 and 12, and the mounting is performed on the skeleton member on the lower surface of the vehicle floor via the mounting holes 11c and 12c. It may be provided on both the vertical and horizontal frames.
Since the frame body has a frame structure, it absorbs external force as a whole, but in this embodiment, it is assumed that the side external force from the direction F in FIG. 1 is large, and the side portions inside the first frames 11 and 12 are assumed. A pair of upper and lower upper flanges 11d, 12d and lower flanges 11e, 12e are integrally formed from above and below a hollow cross-sectional frame having a hollow portion 11a.
The two first frames 11 and 12 are the same except that they are opposed to each other, and will be described with reference to a cross-sectional view taken along the line AA shown in FIG.
The first frame 11 has a hollow cross-sectional shape having a hollow portion 11a in which an upper wall and a lower wall are connected by a pair of side walls 11f and 11g, and an upper flange 11d that is integrally extended from the upper wall to the inside. And a lower flange 11e integrally extending inward from the lower wall, and a fitting recess 11i is formed therebetween.
On the other hand, the second frame 14 has a hollow cross-sectional shape in which both sides of the upper wall 14a and the lower wall 14b are connected by side walls 14c and 14d to form a hollow portion 14e. It inserts in the fitting recessed part 11i so that it may mount on the flange 11e, and butt-connects.
The lower side of the bottom portion of the fitting recess 11i further recessed in the lateral direction, provided with a placement accommodating portion 11h of the sealing member, are disposed a seal member S ₁ having a compressive elasticity of this arrangement accommodating portion 11h.
The seal member S ₁ is is disposed along the entire width of the root portion of at least the lower flange 11e.
Thus, in a coupled state as shown in FIG. 2 (b), the lower part of the butt portion lower end portion 14g of the second frame 14 is a seal member S ₁ is pressed compressed laterally, is sealed.
At this time, the seal member does not have the S _1, for example, the upper end portion 14f, etc. of the second frame 14, since the hits into abutment directly on the bottom of the fitting recess of the first frame 11, more sealing members S ₁ is not compressed.
Thereby, it can prevent that a sealing member is destroyed by overcompression, and can adjust compression amount with the depth and width | variety of the arrangement | positioning accommodating part 11h.
Further, since the frames are in direct contact with each other except for the seal member, the frames have high rigidity.
In addition, this arrangement | positioning accommodating part 11 may cut and form the lower end part 14g side of the 2nd flame | frame 14 without denting the side wall of the 1st flame | frame 11. FIG.
In the present embodiment, an example of a hollow cross-sectional shape is shown for both the first and second frames, but one or both of them may be a solid cross-section having a different shape.
Further, the flange formed on the frame is not limited to the concave structure of the upper flanges 11d and 12d and the lower flanges 11e and 12e of the present embodiment. For example, as shown in FIG. Only the lower flange 11e may be formed, the end of the second frame may be placed on the lower flange 11e, and the end of the second frame may be butted against the side of the first frame 11A.
For example, as shown in FIG. 6, the frame frame structure is limited to the number of frames and the frame shape, such as connecting a plurality of vertical frames (11A, 11B, 11C), (12A, 12B, 12C) with horizontal frames 13A, 14A. There is no.
In this case, the auxiliary frame 16 may be provided, or the bottom lid may be divided into a plurality of bottom lids 15A and 15B.

Next, a connection structure example of the bottom lid 15 and the frame will be described.
For example, as shown in FIG. 3, a mounting flange is formed over the entire inner periphery of the frame formed by the first and second frames, and the bottom lid 15 is formed on the upper surface of the mounting flange. The outer peripheral edge is placed and a frame body is formed as shown in FIG.
An example of the structure will be described with reference to a cross-sectional view taken along line BB shown in FIG.
The second frame 13 has a hollow cross-sectional shape in which the upper wall 13a and the lower wall 13b are connected by a pair of side walls 13c and 13d to form a hollow portion 13e, and is integrally extended from the lower wall 13b to the inside. A mounting flange 13f.
Mounting flange 13f is further through the rising portion 13g forms a mounting portion 13h on the one stage, is arranged a sealing member S ₂ of the step portion as accommodating the stepped portion of the seal member.
Thus, together with the outer circumferential edge portion 15b of the bottom cover 15 as shown in FIG. 3 (b) are sealed by compressing the sealing member S ₂ from the top, portion 13h placing the lower surface of the outer peripheral edge portion 15b of stepped It will be contact of the upper surface, to prevent the sealing member S ₂ is over-compressed.
The bottom lid 15 has a hollow cross-sectional shape having a hollow portion 15a as necessary.

FIG. 4 shows a structural example in the case where the fixed portion of the mounted battery 1 is provided on the bottom lid 15.
The outer peripheral edge portion 15b of the bottom lid 15 is formed with another fixing flange 15c on the inside upper portion, and an insertion hole 15d of the bolt 20 is formed in the fixing flange 15c, and the battery 1 is bolted through the insertion hole 15d. Fix it.
Thus, as shown in FIG. 4 (b), the bottom lid 15 so between the outer circumferential edge portion 15b and the mounting flange 13f is sealed by a seal member S _2, between the bolt 20 and the insertion hole 15d Sealing is not necessary.

DESCRIPTION OF SYMBOLS 1 Battery 11 1st flame | frame 11a Hollow part 11d Upper flange 11e Lower flange 12 1st frame 13 2nd frame 13f Mounting flange 14 2nd frame 15 Bottom cover S ₁ Seal member

Claims (5)

A frame frame connecting at least two first frames arranged in the vertical direction and a plurality of second frames arranged in the horizontal direction between the at least two first frames;
A bottom lid disposed at the bottom of the frame,
A flange is formed on a side portion of one of the first and second frames, and an end portion of the other frame is placed on and butt-connected to the flange, and at least a lower portion of the butt portion A vehicle battery mounting frame body, wherein a sealing member is disposed along the surface.   The vehicle battery mounting frame body according to claim 1, wherein the abutting portion includes an arrangement housing portion for a seal member. The frame frame has a mounting flange integrally extended from the frame on the inner periphery,
The outer peripheral edge of the bottom lid is placed on the upper side of the mounting flange,
The vehicle battery mounting frame body according to claim 1 or 2, wherein a sealing member is disposed between the mounting flange and the outer peripheral edge of the bottom lid.   The mounting frame body for a vehicle battery according to any one of claims 1 to 3, wherein the mounting flange has an accommodating step portion for the seal member.   5. The vehicle battery mounting frame body according to claim 3, wherein the bottom lid has a fixing flange for fixing the battery to an inner side of the mounting flange.

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